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AssigneeThe Dow Chemical Company
InventorsMartin J. Guest, John J. Gathers, Yunwa W. Cheung, Pak-Wing S. Chum
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A sheet, film, fiber, foam or latex prepared from a blend of polymeric materials comprising a plurality of substantially random interpolymers comprising vinyl aromatic and ethylene and/or alpha olefin monomers and wherein: a) the amount of polymer units derived from said vinyl aromatic monomer in any interpolymer component differs from that amount in another interpolymer component by at least 0.5 mole percent; b) the amount of polymer units derived from said vinyl aromatic monomer in the blend is greater than about 19 mole percent; and wherein c) the observed stress relaxation of the resulting blend is greater than the additive stress relaxation of the of the individual blend components.
Sheet or film resulting from calendering, blowing or casting an interpolymer blend comprising a plurality of substantially random interpolymers each interpolymer comprising:
Fibers, foams or latices prepared from an interpolymer blend comprising a plurality of substantially random interpolymers each interpolymer comprising:
Dependencies are inferred from the claim text.